In message <20051026205410.GX24589@bcd.geek.com.au>, Daniel Carosone writes:
>
>
>On Wed, Oct 26, 2005 at 11:43:37AM -0400, Perry E. Metzger wrote:
>
>> So far, no panics, and the thing seems to be surviving even without my
>> doing a continuous ping of a local machine, but I'm still getting these:
>>=20
>> Oct 25 22:06:31 hackworth /netbsd: ath0: link state changed to DOWN
>> Oct 26 01:06:35 hackworth /netbsd: ath0: link state changed to DOWN
>> Oct 26 04:06:40 hackworth /netbsd: ath0: link state changed to DOWN
>> Oct 26 07:06:44 hackworth /netbsd: ath0: link state changed to DOWN
>> Oct 26 10:06:49 hackworth /netbsd: ath0: link state changed to DOWN
>>=20
>> Note that for the most part the lossage is <1 second, but sometimes it
>> lasts for a couple of minutes (once 78 seconds, once 138 seconds).=20
>
>Never mind the recovery time difference between DOWN and UP, look at
>the pattern where they go down. They are remarkably aligned, 3 hours
>and 4-5 seconds apart. =20
>Figure out what happens at that interval, and you have your cause.
>
What is the dhcp lease rebind time?
--Steven M. Bellovin, http://www.cs.columbia.edu/~smb